Help with an 2800+

[XQuiZid]

I have a Barton 2800+ on a ASUS A7N8X-X Bios 1007 with 1GB TwinmosDDR PC3200, GF4 Ti4200 128 DDR, Power Supply 400 Watt, OS WinXP Pro.
stepping : AQUCA 0326SPAW
When i try to Speed up the FSb , i can go to 200 without problems, but in WCPUID i still get a 2075 Mhz reading. but when i put down the multiplier, he sees an 2500+.
Why doesn't the FSB react on the change?

Greetz,

[c627627]

Your board is probably reseting due to a too high of an overclock.

2800+ is 166 x 12.5 default.

FSB of 200 with the same multiplier is 2500 Mhz, way above average, only attainable with great luck, great cooling and name brand power supply (Your 400 watts are only OK if it's a name brand, for example 350 W Fortron power supply is better than a no name 500 W PSU. There are some 500 W PSU that can't be used for OCing at all, they're that bad.)

Also, booting into Windows does not a stable overclock make:

To test the stability of overclocked CPU, download the latest bug fixed version of Prime95:
http://www.mersenne.org/freesoft.htm

Double click on PRIME95.EXE to start the program.

Just Stress Testing (if prompted) > OK >
Options > Torture Test > Blend (if prompted) > OK


The program should not give any errors.
It may be necessary to run the program 12-24 hours to make sure an overclocked system is stable (no program errors displayed).


If you get errors only after several hours, this is a result of slight instability because the system is running with little or no margin. It's stable enough to boot and to be moderately stressed, but as soon as the system is under enough load to go over that critical point, it will freeze. To be 100% stable, Prime95 should run 12-24 hours without any errors.

The point of testing is to see if you get errors or not thus testing the stability. The meaning of errors themselves is not as important.


Running Prime95 Torture Test for 5 to 30 minutes is enough to get a feeling about general stability. If it seems to be stable, increase the FSB (with 0.025V Vcore increase if needed), or increase the multiplier by 0.5.

Reboot and run Prime95 Torture Test for 5 to 30 minutes and repeat this until the Program displays errors.
It's then time to back down and repeat the Torture Test until there are no errors for at least 12 hours.

It's OK to use the computer while Prime95 Torture Test is running in the background.


Welcome to these forums.

Test your system and you'll see it probably cannot pass stability tests anywhere near 2500 MHz.

Average is 2.3 GHz...